MrEditor
a Mac editor that opens a 10 GB log in 100ms and edits it
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HN · launched Sep 3, 2026 · 5 upvotes (top 87%) · 1 view
Niche: text and document editors · 95 launches, 7 in the last 7 days ▼ -46% · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Prosumer
- Not AI
- Commercial product
Visit website ↗ Source listing ↗
More like this: all 95 launches in text and document editors →
Could you build this?
No Opening and editing a 10 GB file in 100ms on macOS requires custom memory-mapped I/O, specialized data structures like piece tables or ropes, and high-performance native text layout engines.
What it would actually take: Built with Swift/Objective-C/C++ using low-level Darwin syscalls (`mmap` with `MADV_WILLNEED`/`MADV_SEQUENTIAL`) to avoid loading the file into RAM. Text manipulation requires lock-free concurrent Piece Tables, B-trees, or Rope data structures combined with sparse byte-to-line-number indexing so edits do not rewrite gigabytes of data. The rendering layer requires virtualized viewport rendering utilizing Metal or CoreText directly. Deep systems programming, memory architecture, and text engine engineering expertise are strictly required.
Discussion
No comments on this launch.
Competitors
Other products that read as similar to this one : 2547 launches clear the similarity bar, closest 8 shown.
Attention rank: #2176 of 2548 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 308 days after the earliest competitor.
- kayet · ph · 2026-11-07 · 78 upvotes · similarity 0.65
- DaisyCap · github · 2026-11-02 · 27 upvotes · similarity 0.64
- Zikky · github · 2026-10-30 · 18 upvotes · similarity 0.62
- Narrative: Cursor for Professional Video Editors · yc · 2025-11-01 · 33 upvotes · similarity 0.61
- Mole · hn · 2025-12-27 · 6 upvotes · similarity 0.61
- Notemac++ · hn · 2026-02-27 · 5 upvotes · similarity 0.61
- Slice · github · 2026-10-16 · 70 upvotes · similarity 0.61
- DeRust · github · 2026-11-04 · 84 upvotes · similarity 0.60
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